Adding-machine.



No. 817,786. PATENTED APR. 17, 1906.

- M. KUN.

ADDING MACHINE.

APPLICATION FILED JAN. 12, 1904.

9 SHEETS-SHEET 1.

PATENTED APR. 17, 1906.

M. KUN.

ADDING MACHINE.

APPLICATION FILED JAN.12, 1904.

9 SHEETSSBEET 2.

jw'eiziar 101405 Jttya.

PATENTED APR. 17, 1906.

M.- KUN. ADDING MACHINE.

APPLIGATION FILED JAN.12, 1904.

9 sH'EETssHBET s.

jwanior a w w No. 817,786. PATENTED APR. 17, 1906. -M. KUN.

ADDING MACHINE.

APPLICATION FILED JAN.12, 190-1.

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O O O O Wineasas r lfivi (a MMM 1 A V1, 1&- W lffflybt PATENTED APR. 17, 1906.

M. KUN.

ADDING MACHINE.

APPLICATION FILED JAN. 12, 1904.

9 SHEETSSHEET 6.

PATENTED APR. 17, 1906.

M. KUN. ADDING MACHINE. APPLICATION FILED JAN.12, 1904.

9 SHEETS-SHEET '1.

PATENTED APR-.17, 1906.

M. KUN. ADDING MACHINE.

APPLICATION FILED JAN. 12, 1904.

9 SHEETS-SHEET 8.

PATENTED APR. 17, 1906.

M. KUN.

ADDING MACHINE.

APPLICATION FILED JAN. 12, 1904.

9 SHEETSSHEET 9- r M w W2? WW 4, M a Kg UNITED STATES PATENT oEEIoE.

' MICHAEL KUN, OF BUDAPEST, AUSTRIA-HUNGARY, ASSIGNOR TO a G. HALPHEN, or PRAGUE, AUSTRIA-HUNGARY, A FIRM.

ADDING-MACHINE.

Specification of Letters Patent.

Patented April 17, 1906.

Applicati n fil d January 12,1904. Serial No; 188.756.

1'0 all whom it may concern:

Be it known that I, MroH EL KUN, a subject of the Em eror of Austria Hungary, and a resident Budapest, in the Empire of Austria-Hungary, have invented a certain new and useful Improvement in Adding-Machines, of which the following is a specification.

The object I have in view is the production of an adding type-writer that will rint a column of figures and the sum-total t ereof by a single set of printing-types, but actuated by different sets of keys.

Inorder to more clearly understand the nature of the invention, attention is directed to the accompanying drawings, which show one embodiment of the invention, and in whichequation 0 plus 3 Figure 1 is a plan view of the apparatus, showing the carriage remove Fig. 2 is a section on the line A A of Fig. 1. Fig. 3 is a' back view of the machine with parts broken away. Fig. 4 is a plan of the machine, showing the paper-carriage. Fig. 5 is an enlarged view of the rack and inion for actuating the notched disk, the rec and pinion being out of engagement. Fig. 6 is a view of the same parts, the rack and pinion being in engagement. Fig. 7 is an enlarged View of the parts of the mechanism comprising the gibbous cam, a sum-key, and bridges in the neutral osition. Fig. 8 is a view of the same parts, but showing the mechanism in the osition assumed after the operation indicate by the equals 3 has been performed; Fig. 9, the same view, parts in the position in which 3 plus 2 equals 5 has been performed; and Fig. 10, the same in which the operation'indicate fy the equation 2 plus 4 equals 6 has been per ormed. Figs. 11 to 13 show the arrangement for returning the mechanism to'the neutral position after a column of figures has been printed and the sumthereof secured. Fig. 14 is an end view, and Fi 15 a plan view, of the parallel guidefor the cross-bars, rid es, and yokes.

In all views ike parts are indicated by the same reference characters.

In carrying out my invention I provide a machine wherein three rows of ke s are used, the downward movement of w i'ch is arranged to effect the actuation of the carriage mechanism. Thelower row of keys, as shown in the drawings, serves the purpose of adjustment of the carriage to the desired osition of line.

the number or unit value with relation to the corresponding notched disk 15. The middle row 0 keys serves the purpose of actuating the type-lever (by the connecting-rod 61) to print the individual items and control the notched disks 15 and rotate them to the extent corresponding to the amount to be added. These disks in their turn influence the upper third row of keys through the agency of the tongues 21, which keys serve for the printing of the sums by the actuation of the same type through the agency of the bridges 22.

In the lowest row. for the adjustment of the carriage, the individual keys are provided. with a value indication,thus: E, Z, H, T, &c., indicating units, tens, hundreds, thousands, &c. The individual keys 50 .of the middle row will have the impression of the individual items or figures, and they bear the designations :1 H1, :1 ,7; 7, 8, 9, each key having one of the figures from O to 9, and each of these keys is in connection'with a type-lever carrying the corresponding figure.

The sumkeys-that is to say, the uppermost row of keys Abear no sort of des gnation. They may be white, black, or otherwise colored. It is to be understood that they are carried by the tongues 21 and are moved backward and forward over the bridges 22 and serve the purpose of printing the sum-totals. Each of the sum-keys is arranged to print any figure from 0 to 9, depending upon its position. Since the position of the sum-keys in each row is unchangeable from left to right, it is of course possible to provide the individual keys with indications of osition-as units, tens,hundreds, or thousan s-similar or corresponding to the lowest row of keys from right to left, as will be evident.

At the beginning of a calculation that key of the row of keys 1 whichfor example, the thousandths-key is placed at that threepoint number which corresponds to the big est unit of the item to be printed and added. On the depression of a key of the row 1 the projection of the free end of the key-lever 2 is elevated. The projctionslocated on the free ends of the lever 2 of the unit-keys are all upon the same horizontal plane and in a straight Upon these projections rests a crossbar of keys 1, which serve I other by a minimum distance,

3, parallelly guided in a suitable manner. To this cross-bar is firmly connected a perpendicular rack 4, which meshes with a small pinion 5, arranged below the paper-carriage 6. Secured to the small pinion 5 is a second pinion7,which meshes with a horizontal rack 8, Fig. 3, carried upon the paper-carriage. now by pressure of the unit-key the cross-bar 3 is lifted by engagement with the pro ection on the end of the key-lever, the rack 4 causes a rotation of the pinion 5 and 7, and therefore by means of the rack 8 a displacement of the paper-carriage 6. At the'sarne time upon the depression of one of these umt-keys and the rotation of the key-lever a restrainingcatch 9, previously forced back into the position of rest by a pin 51, located on the free end of the key-lever, is released and. forced by the effect of a spring 52 into the path of the cross-bar 3, whereby the upward movement of the latter is limited.' These restraining-h00ks9 are of different lengths, so that the strokes of the two levers of the individual unit-keys have a different and exactlydetermined magnitude. By this limitation of the movement of the keys the movement of the rack 4, and therefore that of the paper-carriage 6, is exactly limited-that is, the latter is adjusted exactly depressed unit-key.

Below the carriage and firmly connected thereto, so as to move therewith, is a double row of wedges 10 10 10 10 10 10 10 10 10 10 which wedges are so arranged that upon the movement of the carriage each of them will engage the upper end of one of the operating-bars 11 11 11 11 11 11 11 11 11 11, which are situated below them and depress it. The wedges 10 and the operating bars 1.1 corresponding thereto are arranged in two rows in order to avoid at any time two or more wedges coming in contact with two or more operating-bars when the paper-carriage is adjusted. The necessity of arranging the wedges in two rows is made clear by the circumstanee that the elements-the gibbous cams, bars, &c.are separated from each in practice about twenty-two millimeters. The carriage, however, permits a displacement of about five millimeters width corresponding to the distance of the figures. This being so, the first wedge-point 10 is four millimeters distance from the first operating-bar 11, the second wedge-point 10 eight millimeters from the second operating-bar 1 1 the third wedgepoint 10 twelve millimeters from the third operating-bar 11, etc, each wedgepoint being about four millimeters in advance of the other. This being so, the operating-bars 11 11 to 11 will be only twentytwo millimeters from each other and the first wedge 10 will come into operation by a movement of about two millimeters of its oblique plane. Upon the movement of thesixth operatingrows, so

be separated from the others in the same row corresponding to the bar 11, which is actuated by a wedge-point 10 separated from it by twenty-four millimeters, (since the first wedge 10 is removed as to its tip, 4 plus 22,) twenty-six millimeters from the second rod 11",) and therefore on the sixth movement of the carriage, caused by the sixth-key pressure, an undesirable arrangement would result if the wedges and bars were in a single line. The same results would be secured with the other wedges, and this is avoided by placing the wedges in two that one of the operating-bars will by a displacing difference as far (2 multiplied by 22, thus 44 millimeters) so that with eleven elements, and therefore with the eleventh movement of the carriage, (11 multipled bye equals 44,) no undesirable movements of the operating-rods will result.

Upon each of the perpendicular operatingrods 11 is located at any desired distance from each other two cam projections Z Z and at the end of each rod is a pin 58. These two cam projections are arranged to come into contact with two horizontal push-bars 12 when the operating-levers 1.1 11 to 11 are depressed by the wedges 10 10 to 10 which push-rods each carry one of the perpendicular racks 13 By the simultaneous movement of the two horizontal push-bars 12 on the depression of the corresponding operating-lever 11 11 to 1'1 by the carriage 6 through the action of the wedges 10 10 to 10 the corresponding rack 13 is brought into engagement with a pinion 14, secured to the notched disk 15 at the same time the pin located at the lower end of the perpendicular rod 13 on the movement of the rack comes into engagement with a groove y, located'in a suitably-arranged parallelly-guided crossbar 16. The pin 53, located on the operatinglever '11,is arranged so that, in addition to the cam projections Z Z it will by means of the depression of lever-arm 17 cause the pin 54,10-

cated on the end of the same, to come out of engagement with the notches 55 on the periphery of the disk 15 and release the latter.

The notched disk 15, which corresponds tothe unit-key, is in operation, which now on the outward movement of the rack 13 is parttially rotated. i

It is to be understood that therotation of the notched disk is secured first by thepressure of the key of the middle row of keys that is to say, the type-keys. On the depression of one of these keys an impression of the suitable figure corresponding to the key is made with the assistance of levers located on these keys, each one of which bears the figures O to 9, which correspond with the designation upon the key itself. Between these keys, on the one hand, and the notched disks 15, on the other hand, are inserted intervening mechanism which may be constructed as follows and operated in the effected following manner: Intermediate the end of the type-lever 18 is connected, through a link G, a double lever 19, on the free end of which at an equal height with the ends of the remaining levers 19 and in a straight line therewith rests the cross-bar 16. The latter is in engagement with the pin of the horizontallymoved rack-bar 13 by means of the abovementionedgroove y. On the upward movement of the free end of'the double lever 19 the rack 13 is caused to move upward, and since it is in engagement with the pinion of the corresponding notched disk 15 rotates the latter to a fixed extent, corresponding to the stroke of the ty e lever 18 or of the double lever 19. The ength of this stroke corresponds to each individual movement, which is determined by a suitable limiting arrangement. As shown in the drawings, this device consists of a catch or hook 20, which is by the pressure of a pin 56, carried by the lever 19, which forces it out of the path of the cross-bar 16 against the tension of the spring 57, and so it will exactly define the point up to which the rack13 can be raised and the extent to which the notched disk may be rotated determined. A backward movement is prevented by a pawl-andratchet wheel 58, connected to each of the notched disks.

On one side of each of the notched disks 15 is arranged a double cam F. Against these cams are engaged the tongues 21, which carry the upper row of keys. This action is secured by means of springs 59. The keys are so fixed upon the tongues 21, which are adjusted in guides in a horizontal direction, that upon being depressed each forces down one of the brid es 22. At each rotation of the notched dis the tongue 21, and with it the ro er sum-key, is pushed farther over the ridge 22 in the direction of the arrow, while after passing the outermost point of the cam F it is slid back again to the first bridge by the spring-pressure. In Figs. 7, 8, 9, the position of the notched disks and sum-keys at 0 plus 3 e uals 3, 3 plus 2 equals 5, and 2 plus 4 equas 6, respectively, are shown. The bridges are in contact with the corresponding type-lever 18, as by means of a foot 23. The disk has twenty notches in its periphery, and the cam E two points. This wil reciprocate the tongue 21 twice during each revolution of the disk. The number of notches and points in the cam can be varied as is necessary or desirable.

Upon the depression of a key of the middle row an oscillating frame 24, located under the. lever 18, is moved with the lever 18 against the resistance of a spring 62. This frame is in engagement, by means of a rod 25 and clutches 26, with a ratchet-wheel 27 on the shaft of the pinions 5 and 7, and the parts are so arranged that at each upward movement of the bar 25 after the cessation of the pressure upon a lever 18thatis to say, upon the release of a key-the ratchet-wheel 27 is rotated the distance of a single tooth. By the rotation of the ratchet-wheel 27 by the distance of a tooth the paper-carriage, and with it the pinion 7, is rotated and the rack 8 is automatically moved to its position for the next lowest unit which is to be printed by the type-key. The clutch is rovided with two arms, either of which can e disengaged by afinger 63, carried on a shaft 64, the finger coming into engagement with a in 65, carried by each of the clutches 26, so t at the direction of rotation of the wheel can be controlled. By means of this movement of the paper-carriage 6 the operating-bar 11 11 to 11 corresponding to the next unit is depressed by means of the corresponding wedge 10 10 to 10 whereby it results that the notched disk 15 of the next lower unit is put in position for rotation upon the depression of a type-key. Another figure .is printed by pressure of this key and a corres onding sum-key is affected. The paper-s ide 6 progresses farther again automatically for a ower unit, whereby the same processis repeated. In the same manner the mechan- 1sm works also in the opposite direction, so as toincrease from the smallest unit, when the locking-wheel is reversed by the aid of the catch which is seen in the drawings, Fig. 3.

In the preceding observation of the method of operation the impression .of the first row of figures of an item was rendered appareht. I The item standing under it after the paper is moved forward for the next row of numbers, by hand or by a suitablemechanism, such as the thumb-wheel 66, is printed in the, same way, since first the roper unitkey and then the necessary typeeys are de pressed.

It is plain from the above that in a repetition of this process with the same units the same notched disks are rotated by the amount corresponding to the figures to be added. At the same time also the tongues of the sum-keys are pushed forward one after the other over the bridges by these individual amounts, whereby an automatic addition of the same units is effected' Since, however, in this addition the passing beyond the unit must be regulated, a special device is necessary for this purpose.

Each of the notches in the disk 15 is arranged to engage with a pin 54, carried upon the free end of the lever 17, the latter being supported by a pin 67, engaging with a slot 68 and so arranged as to be moved upon the pin. As already described, the lever-arm 17 is moved by the downward movement of the pin 53 on the corresponding perpendicular bar 11 to release the corresponding notched disk. Upon the lever-arm 17 is located another pin 28, which engages in an open slot formed in the lower end of an arm 30, mounted upon an axle 29. This arm is rigidly connected witha catch 31, which may come 30 of the arm 17, which is connected with the notched disk corresponding to the next higher unit, the notched disk is shifted forward one unit. The distance of the notches on the disk are suitably calculated in order to retain again the proper cam in its position,

- after being pushed forward by the pin 54 on the lever-arm 17, until the proper downwardly moving rod 11, 11*- to 11 effects anew the release of the proper disk. In this manner every time when a gibbous cam is at the end of its movement from neutral position to neutral position the passing beyond the unit is noted by means of the notched disk corresponding to the next' higher unit, which in turn acts upon the corresponding tongue of the sum-key. After the sum-keys are automatically moved along by means of the gibbous cams during the imprinting of the items to spending to the sum the printing of the sum may take place. For this purpose the carriagc, which has returned to the next position of the printing on the next item, must be again pushed forward by a pressure on the corresponding unit key 1 until the units come in the right row. In order, therefore, to get the slide V will be pressed which corresponds to the unit of the sum-key farthest to the left, which is pushed forward. Then in addition to the sumkey which has been moved farthest corresponding to the highest place value to the left the other sum-keys corresponding to the lower units are depressed.- The sumkeys acting upon the bridges 22, located beneath them, which act by their feet 23, on depression on the corresponding levers 18 will successively operate them. Since each bridge corresponds with a certain lever 18 and the sum-keys are directly over the bridges correspondin to the figures of the sum, exact printing 0 the sum can be thereby effected.

After the sum-total has been printed it is necessary to bring the apparatus back to the neutral position. For this purpose a cylinder 33 is provided and is arranged opposite the notched disks. This cylinder is rotated by means of a crank 34. The cylinder, together -with its crank 34 and transmission-wheels 42 and 43, is adjustable in slots 44 44 in the casing in such a manner that, together with a spring 45, so located that when a projection be added to the bridges corre- 1n the right row, that unit-key eivpee 46, which is provided on the crank 34, comes opposite a projection 47, fixed on the casing of the apparatus, the cylinder 33, with its bearings, will be pressed back against the tension of the spring 45 to such an extent that its surface will not touch the periphery of the notched disks 15. After the crank 34 is turned, as shown in Fig. 15, the projection 46 on the same slides down from the fixed projection 47 on the casing and the cylinder 33, by means of the spring 45, is pushed against the notched disks 15 in such aman ner that it comes in contactwith the periphery of the same. If now the crank 34 is rotated farther, all of the notched disks are rotated, and this will continue until a circular depression 48 on the periphery of the. disk reaches a point opposite the cylinder 33. They will then be rotated no farther, since the engagement with the depression 43 will act as a lock. After the notched disks, there'- fore, are differently adjusted after a calculation is finished all the disks on the rotation of the cylinder a sullicient number of times to correspond to a complete rotation will be in a position where their circular depressions lie opposite the cylinder-that is, in their neutral position. The correct neutral position will be obvious from the position of the sumkeys, which must also be in neutral position when the notched disks are in the neutral position. This will therefore serve as an additional means to indicate that the device is in the neutral position.

In operation the movement transference from the crank 34 to the cylinder 33 may be arranged in such a way that the notched disks will make one complete revolution exactly on one rotation of the crankthat is, the notched disks covering the greatest path must certainly reach their neutral position. At the same time the projections 46 on the crank 34 reaching again the fixed projection 47 will bring the cylinder 33 again out of engagement with the notched disks.

I11 order that the bridges "22, as well as the cross-bars 3 and 16, may be engaged at different points of their length by the keys or the free ends of the key-levers, it is necessary in order to avoid binding and difficult operation of the machine to guide the same exactly parallel. The proper cross-bar or bridge 35 has on both ends perpendicular prolongations, one of which, 36, is toothed, while the other, 37, is connected rotatably and adjustably by a pin and slot with a double lever 35, rotatably located on theframe. In like manner the double lever, on the other hand, is connected with a rack 39, perpendicularly supported on the frame, which engages with a pinion 40, rotated also on the frame, whose opposite side is arranged to engage with a toothed prolongation. The prolongation 37 is guided by a roller-41 and by the side walls of the frame. Mter the bridge 35 moves up or with notched disks and cams rotating theredown the rack 39 will be moved in the opposite direction by means of the toothed prolongation 36 and the pinion 40, which movement is transmitted in the reverse manner to the other end of the cross-bar 35 by the aid of the double lever 38 and thejointed rod 37, so that this must by transmission affect the movement of the end of the rack in the direction of pressure.

avmg now described my invention, what I claim, and desire to secure by Letters Patent, is i 1. In an adding-machine, the combination connecting the cross-bar to the paper-carriage and to a notched disk, means for limiting the extent of movement of the bar, and means com risin ferent heig ts adapted to engage with the key-levers, the catches being rotatably arranged in such a manner the same are released on movement of the key-levers and are forced into the ath of the cross-bar to be lifted, by means oi spring-pressure, in order to determine the height of stroke, and therefore the position of the paper-carriage, so that an overstroke is prevented, and therefore the paper-carriage is guided to the proper place value, and the notched disk is rotated about an angle corresponding to the I number to be printed, substantially as described.

6. In an adding-machine, the combination with notched disks, cams, tongues, bridges, racks, type-bars, cross-bars, and pa er-carriage, and means for parallelly gui' ing the bridges, the said means being connected with the t e-bars, and the cross-bars engaging with t e aper-carriage, or cams.

7. In an a ding-machine, the combination with notched disks, cams, tongues, bridges, racks, type-bars, cross-bars, paper-carriage and means for paralelly guiding the bridges connected with the type-bars and the crossbars enga ing with the paper-carriage or camdisks, sai crossbar being provided on tge one hand with a vertical rack, and on t e other hand connected by a vertical arm to a rotatable double vlever, on the other end of which a rack is attached, which engages on one side in a toothed wheel, while the rack connected to the crossbar engages on the other side of said pivoted toothed wheel, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

MICHAEL KUN.

with, means for rotating the disks, and meansactuated by the cams for indicating the totals, substantially as described.

2. In an adding-machine, the combination with notched disks and cams rotating therewith, tongues carrying total-adding keys, the said cams actuating the tongues, bridges ac tuating the ty e, the said total-adding keys being arranged to move over the bridges so that when the total-adding keys are depressed on the bridges the corresponding type-levers which have been previously used or printing single items are depressed and affect the impression of the total amount.

3. In an adding-machine, the combination I with notched disks, cams, tongues, bridges, and racks actuating the disks, and means for racks into gear by' the papercarriage and keys when depressed, substantially as described.

4. In an apparatus of the type disclosed, the improved means for the adjustment of the paper-carriage to the high comprises unit-keys, levers, the cross-bar being lifted by the ends of the levers, a rack carried by the cross-bar, pinions, the said rack engaging with and setting in rotation the said pinions, and a second rack arranged below the carriage, the said rack being moved forward by the pinions.

5. In an apparatus of the type disclosed, a the combination of a crossbar, a paper-carriage and a series of notched disks, means for est unit, which and cross-bar,

Witnesses:

' GIEZA BnKnsY,

WILHELM RosENFELD.

restraining-catches of dif 

